Engine cross-head.



No. 692,287. Patentd Fab. 4, I902.

F. n. HULDSWDRTH.

ENGINE CROSS HEAD.

, (Application filed Apr. 9, 1901.) (No Model.)

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UNITED STATES PATENT OFFICE.

FRED DEAN HOLDSWORTH, OF CLAREMONT, NEW HAMPSHIRE, ASSIGNOR TO SULLIVANMACHINERY COMPANY, OF CLAREMONT, NEW HAMPSHIRE, AND CHICAGO, ILLINOIS, ACORPORATION OF NEW HAMPSHIRE.

ENGINE CROSS-HEAD.

SPECIFICATION forming part of Letters Patent No. 692,287, dated February4, 1902, Application filed April 9, 1901. Serial No. 54,979- (No model.)

To a whom it may concern: ceiving the nut 15. Just below the head the Beit known that I, FRED DEAN HOLDsbolt is tapered, as at 16, so that whenthe nut WORTH,aresidentof Claremont, in the county let is drawn up tightthe said bolt will be of Sullivan and State of New Hampshire, havelocked to the cross-head to swing therewith.

invented a new and useful Improvement in In the straight portion 11 ofthe slot in the 55 Engine Cross-Heads, (Case A 3) and I do hereblock 7is located an adjusting block or plate by declare the following to be afull, clear, and 17, the same being provided with a concave exactdescription thereof. seat 18, which bears against the swivel-pin Myinvention relates to engine cross-heads, 12, and with a projection orstud 19, which and more particularly to such cross-heads as extends intothe opening into which the pis- 60 are provided with wrist-pins at bothends for ton-rod 8 is screwed and against which stud or the attachmentof connecting-rods thereto and projection the piston-rod 8 is adapted tobear. which cross-heads have a swivel connection In the use of myimproved cross-head any with the piston rod or rods in order to relieveinequality in the length of the connecting- I5 the said piston rod orrods of any bending rods or lack of alinement of the engine-shaft 65strains due to inequalities in the lengths of will cause a slightswinging or rocking of the the connecting-rods, lack of alinement of thecross-head about the swivel-pin 12, which will engine-shaft, or to othercauses. cause a slight wear between said pin and the The object of myinvention is to provide block 7. In order to take up this wear, it ismeans whereby the wear in the swivel conmerely necessary to screw thepiston-rod 8 a 7c nection of the cross-head and piston-rod may littlefarther into the block 7, thereby forcbe taken up. ing the block orplate 17 against the swivel- In the accompanying drawings, Figure 1 ispin 12, as will be readily understood. a plan View of the cross-head.Fig. 2 is a While I have shown two piston-rods contransverse section ofthe same, and Figs. 3 nected to the block 7, I wish it understood 75 and4 are details of the adj usting-block. that my invention is not limitedthereto, but

1 represents the cross-head, which is prois applicable to a singlepiston-rod attached vided with the guide-faces 2,which move upon to saidblock. Furthermore, in place of the the ordinary Ways of the engine-bed,and with tapered portion 16 of the pin 12 any other 0 the wrist-pins 3at each end, to which wristsuitable means may be used to secure the 80pins are connected the usual connecting-rods, said pin in thecross-head, so that it wlll as willbe readily understood. The cross-headmove in unison therewith, the object being is cut away centrally toprovide the top wall to confine all the wear to the bearing between orplate 4 and the bottom wall or plate 5, besaid pin and the block 7.

5 tween which is the space 6. What I claim as my invention, anddesire'85 7 represents a swivel-block, to which are to secure by LettersPatent, is-- secured the piston-rods 8 and 9, said rods be- 1. An enginecross-head provided with ing shown as screwed into said block; but itwrist-pins at the ends for the attachment of is obvious that any othersuitable means can connecting-rods thereto, of a vertical pin sebe usedto secure said rods to the block. This cured centrally in saidcross-head to swing on block 7 is provided with a central opening ortherewith, a block pivoted on said pin and slot which is concave on oneside, as at 10, provided with means for the attachment of and straighton the opposite side, as at 11, a piston-rod thereto, and means fortaking and communicates with the hole into which up the wear between thepin and said block.

the piston-rod Sis screwed. Passing through 2. An engine cross-headprovided with 5 this opening or slot and through suitable wrist-pins atthe ends for the attachment of openings in the walls 4 and 5 of thecrossconnecting-rods thereto, of a block provided head is a swivel-pin12, the same being prowith an opening and with means for the atvidedwith a head 13 at its upper end and a tachment of apiston-rod thereto,of a swivelthreaded portion 14 at its lower end for repin secured to thecross-head to swing there'- roe with and passing through the opening insaid block, a wear-plate between said pin and block, and means foradjusting the same.

3. An engine cross-head provided with wrist-pins at the ends for theattachment of connecting-rods, of a block provided with an opening andwith means for adjustably securing a piston-rod thereto, of a swivel-pinconnected to the cross-head to swing therewith and passing through theopening in the block, and a wear-plate between the end of the adjustablepiston-rod and swivel-pin.

4. An engine cross-head provided with wrist-pins at the ends for theattachment of connecting-rods thereto, of a block provided with avertical opening and with a screwthreaded opening for receiving the endof a piston-rod, said screw-threaded opening communicating with thevertical opening, of a swivel-pin secured to the cross-head to swingtherewith and passing through said vertical opening, and a wear-platebetween said swivel-pin and projecting into 'the screwthreaded opening,whereby the adjustment of the piston-rod will force said plate tightlyagainst the swivel-pin.

5. An engine cross-head provided with wrist-pins at the ends for theattachment of connecting-rods thereto, of a block provided with avertical opening and with a longitudinal opening communicating with thevertical opening, of a piston-rod adjustably secured on saidlongitudinal opening, a swivel-pin secured to the cross-head to swingtherewith and passing through the vertical opening, and a wear-plate insaid vertical opening between the swivel-pin and projecting into thelongitudinal opening against the adjustable piston-rod.

In testimony whereof I, the said FRED DEAN HOLDSWORTH, have hereunto setmy hand.

FRED DEAN HOLDSWORTI-I.

\Vitnesses:

F. H. FOSTER, GEO. C. WARNER.

